Serious complications are rare, but can include intestinal bleeding or perforations in the intestine. This can lead to a life-threatening bloodstream infection (sepsis). Symptoms include nausea, vomiting, and severe abdominal pain.

Inactivated typhoid vaccine. This vaccine is a one-dose injection. It’s not for children younger than two years old and it takes about two weeks to work. You can have a booster dose every two years.

Live typhoid vaccine. This vaccine is not for children under age six. It’s an oral vaccine given in four doses, two days apart. It takes at least a week after the last dose to work. You can have a booster every five years.